https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AUniversidad%20Gerardo%20Barrios%20and%20au%3AGonz%C3%83%C2%A1lez%20Murillo%2C%20Carlos%20Ernesto%20and%20itype%3AVM%20and%20holdingbranch%3AUSU%20and%20holdingbranch%3AUGB%20and%20holdingbranch%3AUGB%20and%20au%3AD%C3%AF%C2%BF%C2%BD%C3%AF%C2%BF%C2%BDaz%20Ar%C3%AF%C2%BF%C2%BD%C3%AF%C2%BF%C2%BDvalo%2C%20Gabriela%20Margarita&format=rss2 Search results for 'Provider:Universidad Gerardo Barrios and au:González Murillo, Carlos Ernesto and itype:VM and holdingbranch:USU and holdingbranch:UGB and holdingbranch:UGB and au:D��az Ar��valo, Gabriela Margarita' at Biblioteca UGB 0 20